// pages/CustomizeCmpt/CreateUse/ComponentPage/component-page.js
Component({
  properties: {
    paramA: Number,
    paramB: String,
  },
  methods: {
    onLoad(data) {
      console.log(data) // {paramA: "123", paramB: "xyz"}
      console.log(this.properties.paramA) // 123
      console.log(this.properties.paramB) // xyz
    }
  }
})
